Who is Geronimo Stilton? That's me! I run a newspaper, but my true passion is writing tales of adventure. Here in New Mouse City, the capital of Mouse Island, my books are all bestsellers! My stories are full of fun - tastier than Swiss cheese and tangier than extra-sharp cheddar. They are whisker-licking-good stories, and that's a promise! Holey cheese, it was exciting! Thea, Trap, Benjamin and I were on the trail of the Ruby of Fire, a legendary gem hidden in the heart of the Amazon jungle. But our quest soon turned into a race against time. Some pretty nasty rodents were after that ruby! Could we keep the priceless stone from falling into the wrong paws?